Using rigorous statistical analysis, National Institute of Standards and Technology (NIST) researchers identified a potential source of error in the surface roughness data used in the automotive industry to predict how friction affects production of metal parts during forming.
These optical micrographs show two surfaces with the same average roughness values but dramatically different surface topographies.
With this improved analysis, automakers should be able to more easily incorporate lighter weight materials in their products and improve fuel efficiency.
The NIST scientists presented their findings at the Society of Automotive Engineers World Congress 2004, held in Detroit March 8-11.
Scott Nance | EurekAlert!
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